Non-Newtonian Fluid

Use a Non-Newtonian Fluid type modeling object to include a non-Newtonian fluid in your model. A non-Newtonian fluid is a fluid in which the viscosity changes with the applied strain rate.

A Non-Newtonian Fluid type modeling object allows you to modify the definition of an existing fluid material to include non-Newtonian properties. When you use the modified fluid material in your model, the solver interprets it as having the specified non-Newtonian properties.

Types of Non-Newtonian Fluids

The Type option in the Non-Newtonian Fluid dialog box lets you create the following types of non-Newtonian fluids:

• The Power Law type models fluids with dilatant, pseudo-plastic, and similar behaviors. You can model with power law fluids such as suspensions of sand or pulp.

• The Herschel-Bulkley type models fluids with Bingham plastic, viscoplastic, and similar behaviors. You can model with Herschel-Bulkley fluids such as mud, blood, paints, or oils.

• The Carreau type is a generalized model that behaves as Newtonian at low shear rate and non-Newtonian for high shear rates.

Where do I find it?

Application	Pre/Post
Command Finder	Modeling Objects
Menu	Insert → Modeling Objects
Location in dialog box	Type list → Non-Newtonian Fluid → Create

How do I

Define a gas using the Redlich-Kwong equation of state

Define a bivariate fluid material property

Define a bivariate fluid material property using a generic entity (legacy)

Model a homogeneous gas mixture

Define a Non-Newtonian Fluid

Model a tracer fluid

Learn more

Fluid material conversion

Bivariate fluid material properties

Immiscible Fluid Mixture

Homogeneous Gas Mixture

Tracer Fluid

Look up more details

Fluid materialsfor heat transfer and flow analyses

Modeling multiple fluids

Multiple Fluid materials

CSV file format for bivariate fluid material properties (legacy)

Quick links

Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal boundary conditions

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Non-Newtonian Fluid, Simcenter 3D 2021.1 Series

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